@CHARSET "UTF-8";
body{
	margin:0px auto;
	padding: 0px;
	width: 100%;
	height: 100%;
}
#maindiv{
	width: 100%;
	height: 100%;
	margin: 0px auto;
	text-align: center;
}

.auto {
	width: 100%;
	height: 100%;
	background:black;
}
#tree {
	width: 100%;
	height: 100%;
}